The opening session of the test on Saturday morning was brought to an early end after the Mugen NSX-GT’s left-rear tyre let go in spectacular fashion along Fuji’s start/finish straight, leaving debris all over the track.
Ukyo Sasahara was at the wheel when the deflation occurred, although he was able to bring the Mugen NSX-GT to a controlled stop after the puncture.
The damage was also sufficiently minor that the #16 car was able to run in the afternoon session.
Dunlop says it is still analysing the cause of the failure, but had yet to come up with an explanation a day on from the incident.
“We are checking the tyre and we don’t see anything different from other tyres,” Dunlop Japan’s motorsport department manager Yoshinao Yasuda told Motorsport.com.
“We had suspected there was a production problem, but looking at the data we can’t see any evidence for this, so we don’t know the real reason.
“For now, we are asking [Mugen] to bump up the tyre pressure a little bit and…
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